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EUMETNET E-PROFILE: ceilometer cloud base height and aerosol profile data from FMI's Vaisala CL31 instrument B deployed at Vaasa Lentoasema, Finland

Update Frequency: Daily
Latest Data Update: 2023-06-15
Status: Ongoing
Online Status: ONLINE
Publication State: Published
Publication Date: 2022-01-12
Download Stats: last 12 months
Dataset Size: 471 Files | 586MB


Daily concatenated files of ceilometer cloud base height and aerosol profile data from Finnish Meteorological Institution (FMI)'s Vaisala CL31 deployed at Vaasa Lentoasema, Finland.

These data were produced by the EUMETNET's E-PROFILE processing hub as part of the ceilometer and lidar network operated as part of the by EUMETNET members. This network covers most of Europe with additional sites worldwide.

The site has a corresponding WMO Integrated Global Observing System (WIGOS) id: 0-246-0-101462.
See online documentation for link to station details in the Observing Systems Capability Analysis and Review (OSCAR) Tool.

EUMETNET is a grouping of 31 European National Meteorological Services that provides a framework to organise co-operative programmes between its Members in the various fields of basic meteorological activities. One such programme is the EUMETNET Profiling Programme: E-PROFILE. See EUMETNET page linked from this record for further details of EUMETNET's activities.

Citable as:  Finnish Meteorological Institution; EUMETNET (2022): EUMETNET E-PROFILE: ceilometer cloud base height and aerosol profile data from FMI's Vaisala CL31 instrument B deployed at Vaasa Lentoasema, Finland. NERC EDS Centre for Environmental Data Analysis, date of citation.
Abbreviation: Not defined
Keywords: E-PROFILE, ceilometer measurements


Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Access to these data is available to any registered CEDA user. Please Login or Register for an account to gain access.
Use of these data is covered by the following licence: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data were collected by instrument and transmitted to the central E-PROFILE processing hub at the UK's Met Office before preparation and delivery to the Centre for Environmental Data Analysis (CEDA). CEDA then produces daily concatenated files before ingestion into the CEDA Archive.

Data Quality:
The data are provided as-is with no quality control undertaken by the Centre for Environmental Data Analysis (CEDA). The data suppliers have not indicated if any quality control has been undertaken on these data.
File Format:
Data are netCDF formatted.

Process overview

This dataset was generated by instruments deployed on platforms as listed below.
Output Description


  • units: m
  • standard_name: altitude
  • var_id: altitude
  • long_name: Altitude above sea level
  • units: m
  • long_name: Altitude of measurement station
  • var_id: station_altitude
  • var_id: quality_flag
  • long_name: Attenuated Backscatter Quality flag
  • long_name: Attenuated Backscatter at wavelength 0
  • units: 1E-6*1/(m*sr)
  • var_id: attenuated_backscatter_0
  • units: m
  • long_name: Cloud Base Height above ground level
  • var_id: cloud_base_height
  • units: 1
  • long_name: Cloud amount in octa
  • var_id: cloud_amount
  • units: degree_north
  • var_id: latitude
  • long_name: Latitude for each measurement
  • units: degree_east
  • var_id: longitude
  • long_name: Longitude for each measurement
  • var_id: start_time
  • long_name: Start time (UTC) of the measurements
  • units: 1E-6*1/(m*sr)
  • long_name: Uncertainties for Attenuated Backscatter at wavelength 0
  • var_id: uncertainties_att_backscatter_0
  • units: m
  • long_name: Uncertainties for Cloud Base Height
  • var_id: cbh_uncertainties
  • units: m
  • long_name: Vertical Visibility
  • var_id: vertical_visibility
  • units: nm
  • long_name: Wavelength of Laser for channel 0
  • var_id: l0_wavelength

Co-ordinate Variables

  • standard_name: time
  • var_id: time
  • long_name: End time (UTC) of the measurement
  • units: degrees_north
  • standard_name: latitude
  • long_name: Latitude of measurement station
  • var_id: station_latitude
  • units: degrees_east
  • standard_name: longitude
  • long_name: Longitude of measurement station
  • var_id: station_longitude
Temporal Range
Start time:
End time:
Geographic Extent